Sept 11 Remains

  This Wednesday, Aug. 10 2011 photo shows Tatyana Gryazeva, left, a criminalist at the Office of Chief Medical Examiner, instructing Lache Rossouw, right, a visiting scientist from South Africa, and Kelsey Baker, an intern, on extracting DNA at a training lab of the OCME Forensic Biology Lab in New York (AP Photo/Mary Altaffer)
This Wednesday, Aug. 10 2011 photo shows Tatyana Gryazeva, left, a criminalist at the Office of Chief Medical Examiner, instructing Lache Rossouw, right, a visiting scientist from South Africa, and Kelsey Baker, an intern, on extracting DNA at a training lab of the OCME Forensic Biology Lab in New York (AP Photo/Mary Altaffer)

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